Facile and Efficient Self-template Synthesis of Core-coronal-shell ZnO@ZIF-8 Nanohybrid Using Ascorbic Acid and its Application for Arsenic Removal

Document Type : Research Paper


Department of Chemical Engineering, Quchan University of Technology, Quchan, Iran


In the present contribution, a facile and efficient protocol for synthesis a nanohybrid structure of core-coronal-shell ZnO@ZIF-8 using ascorbic acid (ZnO@AA/ZIF-8) as a new adsorbent for arsenic removal from water has been represented. For this purpose, the ZnO nanospheres were synthesized by a green and simple method followed by coating with ascorbic acid (AA) to modify their surface to achieve better growth of ZIF-8 on the surface of ZnO. After that, the core-coronal-shell ZnO@ZIF-8 nanohybrid obtained via in situ ZIF-8 formation using the dispersion of ZnO (as a core) in an ethanol solution only including 2-methylimidazole under moderate conditions. Here, ZnO is utilized as a template (core) as well as the metal node for ZIF-8 synthesis. The as-synthesized ZnO and ZnO@AA/ZIF-8 structures were characterized by different techniques such as XRD, FT-IR, TGA, and, SEM-EDS. The analyses data confirmed the benefit of the method for the preparation of this new nanohybrid. The nanostructured ZnO@AA/ZIF-8 exhibited high efficiency in the removal of arsenic from water. The obtained results confirmed that core-coronal-shell metal oxide@MOF nanohybrid could be introduced as efficient candidates for heavy metals removal for practical applications.


[1] L. Chen, H. Xin, Y. Fang, C. Zhang, F. Zhang, X. 
Cao, C. Zhang, X. Li, J. Nanomate 2014 (2014) 1.
[2] K.Y. Kumar, H.B. Muralidhara, Y.A. Nayaka, J.
Balasubramanyam, H. Hanumanthappa, Powder
Technol. 246 (2013) 125.
[3] R. Comparelli, E. Fanizza, M.L. Curri, P.D. Cozzoli,
G. Mascolo, A. Agostiano, Appl. Catal., B 60 (2005)
[4] R.M. Kong, Y. Zhao, Y. Zheng, F. Qu, RSC Adv. 7
(2017) 31365.
[5] W.W. Zhan, Q. Kuang, J.Z. Zhou, X.J. Kong, Z.X.
Xie, L.S. Zheng, J. Am. Chem. Soc. 135 (2013) 1926.
[6] A.H.A. Saad, A.M. Azzam, S.T. El-Wakeel, B.B.
Mostafa, M.B.A. El-latif, Environ. Nanotechnol.
Monit. Manage. 9 (2018) 67.
[7] M. Jian, B, Liu, G. Zhang, R. Liu, X. Zhang, Colloids
Surf., A 465 (2015) 67.
[8] X. Yang, Z. Wen, Z. Wu, X. Luo, Inorg. Chem.
Front. 5 (2018) 687.
[9] D. Esken, H. Noei, Y. Wang, C. Wiktor, S. Turner,
G.V. Tendeloo, R.A. Fischer, J. Mater. Chem. 21
(2011) 5907.
[10] B. Yu, F. Wang, W. Dong, J. Hou, P. Lu, J. Gong,
Mater. Lett. 156 (2015) 50.
[11] F. Cui, W. Chen, L. Jin, H. Zhang, Z. Jiang, Z. Song,
J. Mater. Sci.-Mater. 23 (2018) 29.
[12] R.R. Salunkhe, Y.V. Kaneti, Y. Yamauchi, ACS
Nano. 11 (2017) 5293.
[13] Y. Song, X. Li, L. Sun, L. Wang, RSC Adv. 5 (2015)
[14] M. Niknam Shahrak, M. Ghahramaninezhad, M.
Eydifarash, Environ. Sci. Pollut. R. 24 (2017) 9624.
[15] M. Jafarpour, A. Rezaeifard, M. Ghahramaninezhad,
F. Feizpour, Green Chem. 17 (2015) 442.
Volume 3, Issue 2
December 2019
Pages 77-85
  • Receive Date: 22 June 2019
  • Revise Date: 04 September 2019
  • Accept Date: 05 September 2019